GRREMOVEEDGE Remove an edge in a graph.

   [NODES2 EDGES2] = grRemoveEdge(NODES, EDGES, EDGE2REMOVE)
   Remove an edge in the edges list, and return the modified graph.
   The NODES array is not modified.

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   author : David Legland 
   INRA - TPV URPOI - BIA IMASTE
   created the 13/08/2003.

Package: matgeom